Astronomy telescopes
Our universe is full of wonders and mysteries that we
haven’t even begun to fully understand. Unlike binoculars, which
are handy but do not provide significant magnification, astronomy telescopes
use complex apertures that allow viewers to see distant galaxies and
nebula.
There are four kinds of astronomy telescopes:
• Reflecting
• Refracting
• Catadioptric (a mixture of reflecting and refracting)
• Ritchey-Chrétien (a variation on the catadioptric telescope
with a lower amplification factor of the second mirror).
Refracting astronomy telescopes are very popular instruments for amateur
astronomers–however, there are some disadvantages. Refractors
use achromatic lenses, which can cause aberrations around bright objects
like the moon and other planets. Also, it costs a lot of money to produce
achromatic lenses–which the buyer has to compensate for.